Why is atropine beneficial in treating the gastrointestinal side effects?

Atropine is beneficial in treating gastrointestinal side effects primarily because it acts as an anticholinergic agent, which inhibits the action of acetylcholine on muscarinic receptors. This leads to reduced gastrointestinal motility and secretions, alleviating symptoms such as cramping and diarrhea. Additionally, atropine can help manage excessive salivation and spasms associated with certain gastrointestinal disorders. Its ability to relax smooth muscle in the gastrointestinal tract makes it a useful option in symptomatic relief.